chore: 初始开源发布

iotlcm-openapi：对外 OpenAPI 网关（V3 接口 + 旧版兼容接口）。

- Go module：iotlcm-openapi → git.5iot.com/iotlcm-public/iotlcm-openapi（178 文件）
- 凭据与地址脱敏：JWT signingKey、MySQL DSN、Redis 口令、
  RabbitMQ DSN 全部改为 ${*} 占位；私网 IP → 文档地址段
- 7 处真实手机号 → 合法 11 位编造号
- 启动 banner 统一 IOTLCM 方块字 + 社区惯例署名
- 移除内部资产：CI 触发器
- Dockerfile 改用公共基础镜像，移除 GOPRIVATE 内网设置
- README 重写（原为 GoFrame 模板占位文案），补 Apache-2.0 LICENSE，
  LF 行尾 + .gitattributes

build/build_config.yaml

@@ -0,0 +1,73 @@
+system:
+  name: "IotLCM-OpenAPI"
+  version: "1.0"
+  description: "IotLCM OpenAPI Service"
+  gfmode: "dev"
+
+server:
+  address: ":8000"
+  openapiPath: "/api.json"
+  swaggerPath: "/swagger"
+  maxHeaderBytes: "20KB"
+  clientMaxBodySize: "200MB"
+  readTimeout: "20m"
+  writeTimeout: "20m"
+
+logger:
+  path: "/app/logs"
+  file: "{Y-m-d-H}.log"
+  level: "dev"
+  timeFormat: "2006-01-02T15:04:05"
+  stdout: true
+  header: true
+
+jwt:
+  signingKey: "${JWT_SIGNING_KEY}"
+  expiresTime: "7d"
+  bufferTime: "1d"
+  issuer: "iotlcm"
+
+database:
+  logger:
+    path: "/app/logs/sql"
+    level: "all"
+    stdout: true
+  default:
+    link: "mysql:${DB_USER}:${DB_PASSWORD}@tcp(${DB_HOST}:3306)/db_iotlcm?charset=utf8mb4&parseTime=True&loc=Asia%2FShanghai"
+    debug: true
+    charset: "utf8mb4"
+    dryRun: false
+    maxIdle: 30
+    maxOpen: 100
+    maxLifetime: 120
+
+cache:
+  adapter: "redis"
+  fileDir: "resource/cache"
+
+redis:
+  default:
+    mode: "single"
+    sentinelMasterName: "iotlcm-master"
+    address: "192.0.2.29:6379"
+    db: 0
+    pass: "${REDIS_PASSWORD}"
+    minIdle: 5
+    maxIdle: 30
+    maxActive: 5000
+    idleTimeout: "60s"
+    ClientName: "OpenAPICache"
+
+router:
+  exceptLogin:
+    - /openapi/v3/query/token
+    - /openapi/v3/query/operator-token
+
+upstream:
+  proxy:
+    address: "localhost:8510"
+    timeout: "10s"
+
+rabbitmq:
+  enabled: true
+  dsn: "amqp://${MQ_USER}:${MQ_PASSWORD}@${MQ_HOST}/"